I do think voice is an under utilized method of input, but in a crowded and loud urban environment it won't work well because of all of the background noise (I

I do think voice is an under utilized method of input, but in a crowded and loud urban environment it won't work well because of all of the background noise (I would think, honestly I've never tried it). I do think a lot of people assume that you would get angry looks from people, but I know that in NYC and in London people will largely ignore you unless you're doing something very annoying or disgusting (a travel companion was chewing her finger nails on the Tube once and was reprimanded by an older gentleman, rightly so). And so I don't think that voice input would be an issue socially, except in obvious cases like restaurants and offices. I just wonder how it would work logistically "in the field."